Cooking-stove



(NQ Model.)

W. LAMB. GOOKING STOVB.

- Patented-Jul 2,1889.. 537.1 y

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UNITED STATES PATENT OFFICE.

\VILLIAM LAMB, OF DO\VNEY, CALIFORNIA.

COOKING-STOVE.

SPECIFICATION forming part of Letters Patent No. 406,051, dated July 2, 1889. Appunti... and August 1s, 1888. seria No. 282,577. (No model To all whom it may concern:

Be itknown that I, WILLIAM LAMB, a citizen of the United States, residing at Downey, in the county of Los Angeles and State of California, have invented a new and useful Improvement in Cooking-Stoves, of which the following is a specication.

My invention relates to that class of cooking-stoves in which the Ilues are so arranged that the flame may be made to encircle the oven or may be made to pass out of the smoke-outlet immediately after passing over the top of the oven.

The object of my invention is to secure complete control of the heat by simple and easily-constructed lues and dampers, as will hereinafter more fully appear.

My invention consists in the peculiar arrangement and combination of lines, partitions, and dampers, which control the flame and cause it to pass to the portion of the stove desired to be heated.

The accompanying drawings illustrate my invention.

Figure l is a view of the top of the stove provided with my invention7 the position of the partitions and dampers being indicated by dotted lines. Fig. 2 is a plan View showing the top of the stove removed. Fig. 3 is a longitudinal vertical mid-section on line c c in Fig. 1. Fig. 4 is a vertical cross-section on line y y in Fig. il, looking toward the rear of the stove. Fig. 5 is a vert-ical cross-section on linee' in Fig. 3, looking toward the front of the stove. Figs. 3 and 5 are broken to contract the view.

The size and proportion of the stove and oven shown are not features of my invention and are non-essential.

In stoves of this class it is customary to surround the oven at its top, rear, bottom, and front with smoke and Ilame passages. I divide the top one of these passages into three lines C, E, and E by partitions F F', eXtendin g from the lire-box A to the rear wall of the stove. The front ends of these partitions are connected by a partition G, which separates the middle flue O from the lire-box. The side Vflues E E open directly from the fire-box, and are separted from the ascending Hue B by the partitions M M. The rear ends of the side vfines E E open into the descending flue B, and their passages are controlled by dampers I I. The central flue C opens into the descending flue Il, and the smoke-outlet D is arranged immediately above the junction of the two flues. The partitions F F extend' across the Hue B to the rear wall L, and the lower edge of the partitions slope from the top of the oven upward to the rear wall of the stove to correspond with the lower side of the damper II when it is thrown back against the rear wall, as shown in Fig. 3. This is to give freer passage for the smoke and ame between the flue E and the smoke-outlet D when the damperis turned to close the flue C.4 The damper .H is mounted on the rear upper corner of the oven, and is arranged to turn both upward and backward. When turned upward, it comes into contact with the top plate N and closes the flue O in front of the smoke-outlet D. It is shown in this position in Fig. l, and such position is also indicated by dotted lines in Fig. 3. I'Vhen the damper H is turned back, it rests against the rear wall L and closes the flue C at its junction with the descending lue B Below the outlet D.

Then it is desired to heat the oven and also the top of the stove, the dampersI I are thrown down to open the lues E E', and the damper II is thrown back against the wall L to close the opening between the flue O and the descending flue B. The flame and heat then passes from the lire-box .through the Ilues E E, beneath the pot-holes J, thence down the descending' llue B, along the bottom flue I3', up through the ascending Hue B, along the flue C, and out through the smoke-outlet D. The pot-holes J, which are arranged in the top N above the ilues E E', thus receive the full heat of the llame, and each of the tour sides of the oven receives a portion of the heat. The descending, bottom, and ascending vliues are respectively coextensive with the rear, bottom, and front of the oven, and the fines E E Ctogether cover the top of the oven. The side `I'lues E E are wide enough to receive the potholes .I in their top, and the central flue C is wide enough to allowfree passage of the flame and smoke.

If it is desired to turn all the heat into one of the (lues E E', one of the dampers I I is IOO thrown up tol close its iiue. If it is desired to pass the ilame out Without heating the oven, the damper l-I is raised to close the flue C in front of the outlet D. This leaves a free opening from the iiue B upward to the outlet D, and the flame and smoke, as it issues from E E into D, dives under the sloping bottom edges of the partitions F F and rises to pass out through D Without passing round the oven.

NOW having described my invention, what I claim as new, and desire to secure by Letters Patent, is

In a stove such as described, the combination, set forth, of the oven, fire boX, and Walls of the stove, the two side fines E E', leading from the fire-box A across the top of the oven, the descending flue B, coextensivewith the rear of the oven,the bottom fine B', coextensive with the bottom of the oven, the ascending iiue B, coextensive With the front of the oven, the middle flue C, connecting the ascending flue B with the smoke-outlet D and the descending Hue B, the smoke-outlet D, arranged above the junction of the iues B andl C, the partitions M M separating the lnes E E from the ascending i'lue, the partitions F, F', and G, the dampers I I', arranged to close the i'lues E E', and the damper H, arranged to close the lue C in front of and be- 3o 10W the outlet D, as and for the purpose set forth.

WVM. LAMB.

Witnesses:

JAMES R. TOWNSEND, M. C. GALER. 

